Hae = ae 
“ Bur {continues Mr. Morveau) it cannot be doubted but a 
“ mutual faturation takes place in cream of tartar and other 
“ falts that take up an excefs of acid between thofe falts in 
« their neutral ftate and that excefs, and yet they affect Tourn- 
« {ole.” In this cafe I allow the neutral falts are indeed 
faturated and fuperfaturated with the acid, but [ am far from 
‘thinking that the fuperabundant acid is faturated’ with the 
neutral falts ; a fure fign that it is not fo faturated is, that if 
it be duly prefented to a further quantity of the fame neutral 
falt it will be divided between them. 
Application of the foregoing Principles to mifcellaneous Experiments. 
‘Tp determination of the quantity of ftandard or real acid 
‘mineral acids, and that of the proportion of ingredients in 
neutral falts, being fubjects of great nicety, the firft never before 
undertaken by any, and the fecond undertaken only by a few, 
and affording difcordant refults, neceflarily infpire diffidence, 
until the accuracy of fome of thefe refults be confirmed by 
collateral and general experience. To remove thefe doubts,- 
by proving that my principles accommodate themfelves to the 
moft exaét experiments hitherto made, I have already quoted 
the experiments of Mr. Cavendifh, and fhall now produce a few 
made by Meffrs. Berthollet, Morveau and Woulfe. 
Vou. IV. L Mr. 
